CN200943911Y - Outdoor set of air-conditioner - Google Patents
Outdoor set of air-conditioner Download PDFInfo
- Publication number
- CN200943911Y CN200943911Y CNU2006200634169U CN200620063416U CN200943911Y CN 200943911 Y CN200943911 Y CN 200943911Y CN U2006200634169 U CNU2006200634169 U CN U2006200634169U CN 200620063416 U CN200620063416 U CN 200620063416U CN 200943911 Y CN200943911 Y CN 200943911Y
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- cross valve
- heat exchanger
- outdoor heat
- compressor
- throttling arrangement
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Abstract
The utility model relates to the technical field of the air conditioner, in particular to an outdoor part for the air conditioner and comprises a compressor, outdoor heat exchangers, a throttling gear, four-way valves and a plurality of pipelines; wherein, the quantity of the outdoor heat exchangers corresponds with that of the four-way valves, at least two branch circuits which are formed by the four-way valves, the outdoor heat exchangers and the throttling gear in serials sequentially are connected parallel to each other and then connected between a high pressure windpipe and a medium pressure hydraulic pipe; wherein, an air inlet of the four-way valve is connected to the high pressure windpipe, an end port of the outdoor heat exchanger is communicated with a normal-open port of the four-way valve; the high pressure windpipe is connected with an exhaust opening of the compressor; an air outlet of the four-way valve is connected to the low pressure windpipe which is connected with an air suction port of the compressor.
Description
Technical field
The utility model relates to air-conditioning technical field, particularly a kind of outdoor unit of air conditioner.
Background technology
Continuous development along with air-conditioning technical, multi-joint machine or the adjustable air-conditioning system of other abilities only need be provided with an off-premises station because of its a plurality of indoor sets, thereby be convenient to like this to install and can come the mixing system operation to save the energy, so more and more accepted by the consumer according to the difference of load.For multi-joint machine, owing to connected many indoor sets, system's load of output in real time is uncertain, and in the time of the indoor set standard-sized sheet, compressor is exported at full capacity, when the part indoor set moves, and the output of compressor section ability; And the off-premises station of existing air-conditioning adopts the design of mono heat exchanger substantially, and when no matter still being sub-load output at full capacity, respective chamber/chambers outside heat exchanger area remains constant; Be unfavorable for the oil return reliability of system's underrun and promote the worst cold case performance of refrigeration down.As China Patent No. is 01127589.3, and the applying date is 2001.10.30, and name is called the patent documentation of air-conditioner with variable energy, is exactly the air-conditioner that typical off-premises station adopts the design of mono heat exchanger.
The utility model content
The purpose of this utility model is to provide a kind of and can allocates flexibly and use corresponding heat exchanger according to the difference of compressor fan-out capability, is beneficial to the oil return reliability and the air-conditioner outdoor unit that promotes refrigeration performance under the worst cold case of system's underrun.
The purpose of this utility model is achieved by the following technical solution:
A kind of outdoor unit of air conditioner, comprise compressor, outdoor heat exchanger, throttling arrangement, cross valve, plurality of pipelines, the quantity of described outdoor heat exchanger is corresponding with the quantity of described cross valve, article at least two, be connected between high-pressure air pipe and the middle hydraulic fluid pipe after being connected in series the branch road parallel connection that forms successively by described cross valve, outdoor heat exchanger, throttling arrangement, wherein, the air inlet of described cross valve inserts described high-pressure air pipe, normal ported being connected of a port of described outdoor heat exchanger and described cross valve; Described high-pressure air pipe connects the exhaust outlet of described compressor; The outlet of described cross valve inserts the low pressure tracheae, and described low pressure tracheae connects the air entry of described compressor.
The normally closed port of described cross valve also inserts described low pressure tracheae after being connected in series a throttling arrangement.
The normally closed port of described cross valve is connected in series the outlet that inserts described cross valve behind the throttling arrangement.
Described high-pressure air pipe extends to indoor, joins with indoor set.
In described, be connected with a fluid reservoir on the hydraulic fluid pipe.
Also be connected to an oil eliminator between the exhaust outlet of described compressor and the high-pressure air pipe.
Described compressor is made up of the compressor of two parallel connections.
A kind of outdoor unit of air conditioner, comprise compressor, outdoor heat exchanger, throttling arrangement, cross valve, plurality of pipelines, the quantity of described outdoor heat exchanger is corresponding with the quantity of described cross valve, article at least two, be connected between high-pressure air pipe and the middle hydraulic fluid pipe after being connected in series the branch road parallel connection that forms successively by described cross valve, outdoor heat exchanger, throttling arrangement, wherein, the air inlet of described cross valve inserts described high-pressure air pipe, normal ported being connected of a port of described outdoor heat exchanger and described cross valve; Described high-pressure air pipe connects the exhaust outlet of described compressor; The normally closed port of described cross valve inserts the low pressure tracheae, and the outlet of described cross valve connects the air entry of described compressor.
The utility model adopts cross valve at least two outdoor heat exchangers and corresponding series connection with it separately or jointly control, make whole circulation system in load operation, select to use in the described outdoor heat exchanger one or several to unite use according to the situation of load, reasonably select the distance of cold-producing medium circulation, therefore help the compressor oil return.In addition, under worst cold case, single in the past big outdoor heat exchanger is because the cold-producing medium flow process is oversize, the pressure reduction of refrigerating operaton is difficult to set up generally speaking, utilize the utility model to can alternatively be used in the described outdoor heat exchanger one or several and unite use, can effectively promote pressure reduction, guarantee the effect of refrigeration.The utility model also because of adopting cross valve at least two outdoor heat exchangers and corresponding series connection with it separately or jointly control the flow direction of cold-producing medium, makes whole circulation system control flexibly, can accomplish really that compressor output and exchange capability of heat are complementary.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the utility model embodiment two;
Fig. 3 is the structural representation of the utility model embodiment three;
Fig. 4 is the structural representation of the utility model embodiment four;
The specific embodiment
Embodiment one
As shown in Figure 1, a kind of air-conditioner outdoor unit comprises compressor 1, outdoor heat exchanger 2, throttling arrangement 3, cross valve 4, plurality of pipelines, and the quantity of described outdoor heat exchanger 2 is corresponding with the quantity of described cross valve 4, is two; Article two, be connected between high-pressure air pipe 5 and the middle hydraulic fluid pipe 7 after being connected in series the branch road parallel connection that forms successively by described cross valve 4, outdoor heat exchanger 2, throttling arrangement 3, wherein, the air inlet 40 of described cross valve 4 inserts described high-pressure air pipe 5, and a port of described outdoor heat exchanger 2 is connected with one normal ported 41 of described cross valve 4; The ability of described cross valve 4, outdoor heat exchanger 2, throttling arrangement 3 is mated mutually.Described high-pressure air pipe 5 connects the exhaust outlet 11 of described compressor 1; Described high-pressure air pipe 5 may extend to indoor, joins with indoor set.The outlet 42 of described cross valve 4 inserts low pressure tracheae 6, and described low pressure tracheae 6 connects the air entry 12 of described compressor 1.The normally closed port 43 of described cross valve 4 is closed.
Between the exhaust outlet 11 of described compressor 1 and described high-pressure air pipe 5, also be connected to an oil eliminator 8.If described compressor 1 self does not have gas-liquid separator, then between the air entry 12 of described compressor 1 and low pressure tracheae 6, connect a gas-liquid separator.Described compressor 1 is made up of the compressor of two parallel connections.The preferred variable conpacitance compressor of described compressor, a constant speed compressor.Throttling arrangement described in the present embodiment 3 is an electric expansion valve.In described, be connected with a fluid reservoir 13 on the hydraulic fluid pipe 7.
Second embodiment
As shown in Figure 2, the difference of the present embodiment and first embodiment is, also inserts described low pressure tracheae 6 behind normally closed port 43 serial connection one throttling arrangements 3 (adopting capillary in the present embodiment) of described cross valve 4.By behind normally closed port 43 serial connections one throttling arrangement 3 of described cross valve 4, also inserting described low pressure tracheae 6, can form the micro-bypass between high-pressure air pipe 5 and the low pressure tracheae 6, solve the problem of complete machine high-pressure air pipe hydrops, be that the complete machine operation is more efficient.Also can be that the outlet 42 of described cross valve 4 is inserted in normally closed port 43 serial connections one throttling arrangement 3 backs of described cross valve 4.
The 3rd embodiment
As shown in Figure 3, the difference of the present embodiment and first embodiment is, 5 of described high-pressure air pipes are communicated with described outdoor heat exchanger 2 place paths, promptly do not extend to indoorly, do not join with indoor set; The normally closed port 43 of described cross valve 4 inserts the low pressure tracheae, and the outlet 42 of described cross valve 4 inserts the air entry 12 of described compressor 1.Two ends at the throttling arrangement 3 of contacting mutually with outdoor heat exchanger 2 are parallel with by a magnetic valve 9 and branch road capillaceous, are used for auxiliary described throttling arrangement 3 and regulate flows, and therefore described magnetic valve 9 is a normally off.In the parallel connection of the two ends of throttling arrangement 3 can also be an electric expansion valve.
The 4th embodiment
As shown in Figure 4, the difference of the present embodiment and second embodiment is that described outdoor heat exchanger 2 is three with the quantity of described cross valve 4; Article three, be connected between high-pressure air pipe 5 and the middle hydraulic fluid pipe 7 after being connected in series the branch road parallel connection that forms successively by described cross valve 4, outdoor heat exchanger 2, throttling arrangement 3.
Below by being that example is introduced the course of work of the present utility model with embodiment 2.
Following table is the explanation to the influential parts of the course of work shown in Figure 2.For the course of action of the parts that relate to is described better, more clearly, label outdoor heat exchanger 2, throttling arrangement 3, cross valve 4 that will be unified in an embodiment in the following table identify respectively especially.
| 1 | 21 | 22 | 31 | 32 | 5 | 6 | | 4W2 | 7 | 8 | 13 | |
| Compressor | Outdoor heat exchanger | Outdoor heat exchanger | The throttling arrangement that is connected in series with heat exchanger 21 | The throttling arrangement that is connected in series with heat exchanger 22 | High-pressure air pipe | The low pressure tracheae | The cross valve that is connected in series with heat exchanger 21 | The cross valve that is connected in series with heat exchanger 22 | Middle hydraulic fluid pipe | Oil content | Fluid reservoir |
Suppose that Fig. 2 is the system diagram that 12 recovery type heat multiple off-premises stations adopt two cross valves, double heat exchanger.The front face area of outdoor heat exchanger 22 approximately is 2 times of outdoor heat exchanger 21.Cross valve 4W2 and cross valve 4W1 select 6 of rated capacities and 4 s' model respectively for use.The corresponding throttling arrangement 32 (being electric expansion valve in this example) and the aperture of throttling arrangement 31 be 1.8mm and 2.4mm respectively.When the indoor set load of operation less than 30% the time, only use outdoor heat exchanger 21; Load between 30% to 70% when the indoor set of operation, only make outdoor heat exchanger 22; Load greater than 70% when the indoor set of operation, outdoor heat exchanger 21 and outdoor heat exchanger 22 use simultaneously.
Under refrigeration mode, the glide path of outside cold-producing medium: exhaust outlet of compressor 11---high-pressure air pipe 5---normal ported 41---outdoor heat exchanger 21 (playing the effect of condenser)---throttling arrangement 31 (present embodiment is an electric expansion valve)---the middle hydraulic fluid pipe 7---indoors of cross valve 4W1.And/or
Exhaust outlet of compressor 11---high-pressure air pipe 5---normal ported 41---outdoor heat exchanger 22 (it plays the effect of condenser at this moment)---throttling arrangement 32 (present embodiment is an electric expansion valve)---the middle hydraulic fluid pipe 7---indoors of cross valve 4W2.
Under heating mode, indoor because high-pressure air pipe described in the present embodiment can extend to, and join with described indoor set; When cold-producing medium from described indoor set enters behind the hydraulic fluid pipe 7, the glide path of outside cold-producing medium:
Middle hydraulic fluid pipe 7---fluid reservoir 15---throttling arrangement 31---outdoor heat exchanger 21 (playing the effect of evaporimeter)---normal ported 41 and outlet 42---low pressure tracheae 6---compressor air suction mouth 12 of cross valve 4W1.And/or
Middle hydraulic fluid pipe 7---fluid reservoir 15---throttling arrangement 32---outdoor heat exchanger 22 (playing the effect of evaporimeter)---normal ported 41 and outlet 42---low pressure tracheae 6---compressor air suction mouth 12 of cross valve 4W2.
The applicant has introduced structure of the present utility model by above embodiment, and utilizing embodiment 2 to introduce the control method of the present utility model and the course of work of multi-joint unit under various states especially as the control object, this can not be considered to a kind of restriction of the present utility model.Because the utility model also has some more conspicuous to one skilled in the art distortion, together with the cross valve of series connection with it and the increase of throttling arrangement, but the change of essence does not take place in the total of complete machine as outdoor heat exchanger number; Also have the common replacement of described throttling arrangement and increase branch road in parallel; Indoor and outdoor heat exchangers in parallel or series connection, the number of compressor etc.Therefore, under inspiration of the present utility model, the conspicuous distortion that those skilled in the art makes all should fall within the protection domain of the present utility model.
Claims (11)
1, a kind of outdoor unit of air conditioner, comprise compressor, outdoor heat exchanger, throttling arrangement, cross valve, plurality of pipelines, it is characterized in that, the quantity of described outdoor heat exchanger is corresponding with the quantity of described cross valve, article at least two, be connected between high-pressure air pipe and the middle hydraulic fluid pipe after being connected in series the branch road parallel connection that forms successively by described cross valve, outdoor heat exchanger, throttling arrangement, wherein, the air inlet of described cross valve inserts described high-pressure air pipe, normal ported being connected of a port of described outdoor heat exchanger and described cross valve; Described high-pressure air pipe connects the exhaust outlet of described compressor; The outlet of described cross valve inserts the low pressure tracheae, and described low pressure tracheae connects the air entry of described compressor.
2, outdoor unit of air conditioner according to claim 1 is characterized in that, the normally closed port of described cross valve also inserts described low pressure tracheae after being connected in series a throttling arrangement.
3, outdoor unit of air conditioner according to claim 1 is characterized in that, the normally closed port of described cross valve is connected in series the outlet that inserts described cross valve behind the throttling arrangement.
4, outdoor unit of air conditioner according to claim 1 is characterized in that, the normally closed port of described cross valve is closed.
5, according to claim 1 or 2 or 3 or 4 described outdoor unit of air conditioner, it is characterized in that described high-pressure air pipe extends to indoor, join with indoor set.
6, a kind of outdoor unit of air conditioner, comprise compressor, outdoor heat exchanger, throttling arrangement, cross valve, plurality of pipelines, it is characterized in that, the quantity of described outdoor heat exchanger is corresponding with the quantity of described cross valve, article at least two, be connected between high-pressure air pipe and the middle hydraulic fluid pipe after being connected in series the branch road parallel connection that forms successively by described cross valve, outdoor heat exchanger, throttling arrangement, wherein, the air inlet of described cross valve inserts described high-pressure air pipe, normal ported being connected of a port of described outdoor heat exchanger and described cross valve; Described high-pressure air pipe connects the exhaust outlet of described compressor; The normally closed port of described cross valve inserts the low pressure tracheae, and the outlet of described cross valve connects the air entry of described compressor.
7, according to claim 1 or 2 or 3 or 4 or 6 described outdoor unit of air conditioner, it is characterized in that, in described, be connected with a fluid reservoir on the hydraulic fluid pipe.
8, according to claim 1 or 2 or 3 or 4 or 6 described outdoor unit of air conditioner, it is characterized in that, also be connected to an oil eliminator between the exhaust outlet of described compressor and the high-pressure air pipe.
9, according to claim 1 or 2 or 3 or 4 or 6 described outdoor unit of air conditioner, it is characterized in that described compressor is made up of the compressor of two parallel connections.
10, according to claim 1 or 2 or 3 or 4 or 6 described outdoor unit of air conditioner, it is characterized in that throttling arrangement is electric expansion valve or capillary.
11,, be parallel with another throttling arrangement at the two ends of the throttling arrangement of contacting mutually with outdoor heat exchanger according to claim 1 or 2 or 3 or 4 or 6 described outdoor unit of air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200634169U CN200943911Y (en) | 2006-08-25 | 2006-08-25 | Outdoor set of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200634169U CN200943911Y (en) | 2006-08-25 | 2006-08-25 | Outdoor set of air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200943911Y true CN200943911Y (en) | 2007-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200634169U Expired - Lifetime CN200943911Y (en) | 2006-08-25 | 2006-08-25 | Outdoor set of air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200943911Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206012A1 (en) * | 2013-06-28 | 2014-12-31 | 青岛海信日立空调系统有限公司 | Three-pipe total-heating-processing variable refrigerant flow air conditioning system and independent temperature and humidity control method |
| EP3156743A1 (en) * | 2015-10-13 | 2017-04-19 | Mitsubishi Heavy Industries, Ltd. | Air conditioning apparatus |
| CN108571834A (en) * | 2017-03-08 | 2018-09-25 | 杭州三花研究院有限公司 | A kind of heat management system |
| CN110608541A (en) * | 2018-06-14 | 2019-12-24 | 三花控股集团有限公司 | Heat pump system |
| US11747057B2 (en) | 2018-06-14 | 2023-09-05 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat pump system |
-
2006
- 2006-08-25 CN CNU2006200634169U patent/CN200943911Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206012A1 (en) * | 2013-06-28 | 2014-12-31 | 青岛海信日立空调系统有限公司 | Three-pipe total-heating-processing variable refrigerant flow air conditioning system and independent temperature and humidity control method |
| EP3156743A1 (en) * | 2015-10-13 | 2017-04-19 | Mitsubishi Heavy Industries, Ltd. | Air conditioning apparatus |
| CN108571834A (en) * | 2017-03-08 | 2018-09-25 | 杭州三花研究院有限公司 | A kind of heat management system |
| CN108571834B (en) * | 2017-03-08 | 2021-09-28 | 杭州三花研究院有限公司 | Thermal management system |
| US11167620B2 (en) | 2017-03-08 | 2021-11-09 | Hangzhou Sanhua Research Institute Co., Ltd. | Thermal management system |
| CN110608541A (en) * | 2018-06-14 | 2019-12-24 | 三花控股集团有限公司 | Heat pump system |
| US11747057B2 (en) | 2018-06-14 | 2023-09-05 | Hangzhou Sanhua Research Institute Co., Ltd. | Heat pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070905 |
|
| EXPY | Termination of patent right or utility model |